1.5 single-family house / living on the ground floor

A mix of many examples and advice from former homeowners

That's exactly how it looks. "After firm comes loose" translates here to "too many concepts are actually none." The spatial reserve in the attic is too large for one to afford such poor planning – somehow a big universal don't-know, suitable for nothing, neither fish nor fowl. The poor child who can't sleep died of fear before it found the miserably long, winding way to the parents' bedroom. If you are planning anew, give the house either the angular hip roof that matches the floor plan or give it a shadow edge at the transition between gable and eaves. From the street, the house looks as if the people were subletting from the cars. If someone would build it for you as terribly as planned here, you would rub your eyes and want to swear you hadn't planned it that way. This shows once again that a 3D planning program doesn't help if the user lacks the sense for it.

I like your suggestion with the advanced roof, I will implement that. Children are actually not planned, I expressed myself a bit wrongly there. Unfortunately, I can no longer change it in the description. Somehow one always wants to cover all possible scenarios. In terms of the floor plan, we only get permission to cut down the 3 marked trees, so we are somewhat limited here. In terms of style, the building should fit into the Franconian landscape, hence a gable roof. As a result, you end up with a large attic even if it is not needed. The garage really stands out very much, I was not so aware of that until now. I will change the width and length or even shift the whole block a bit. Thanks for the feedback.

Why do you plan the garage as part of the house and put a floor on top if you don't need the space?

I want direct access from the garage into the house. The upper floor arises automatically due to the prescribed gable roof.

The [Gaube] and [Satteldach] on the garage are certainly not mandatory. Why are you building so large and cramming yourselves into the ground floor? Actually, there is nothing to add to YPG's statements.

No, that is not mandatory. However, I did not particularly like a flat roof on the garage.